CN217174986U - Chain-type trencher - Google Patents
Chain-type trencher Download PDFInfo
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- CN217174986U CN217174986U CN202122473887.4U CN202122473887U CN217174986U CN 217174986 U CN217174986 U CN 217174986U CN 202122473887 U CN202122473887 U CN 202122473887U CN 217174986 U CN217174986 U CN 217174986U
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- chain
- arc
- traction
- trencher
- pipeline
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- 230000003137 locomotive effect Effects 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 238000010030 laminating Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a chain type trencher, which comprises at least three traction chains and a chain cutter mechanism, wherein the traction chains are arranged in parallel at intervals; each traction chain is matched with a pair of driving chain wheels and driven chain wheels, each driving chain wheel is arranged on the same driving shaft, and each driven chain wheel is arranged on the same driven shaft; the chain cutter mechanism comprises arc-shaped cutter plates which are transversely and symmetrically fixed on the plurality of traction chains, and digging cutters are arranged on the outer arc surfaces of the arc-shaped cutter plates; for each chain wheel on the same shaft, the diameter of the chain wheel from the middle chain wheel to the two side chain wheels is decreased progressively; the radian of the arc-shaped cutting board is matched with the diameter of the pipeline to be buried. The utility model discloses can dig out the arc end foundation ditch high with the pipeline laminating degree, solve the pipe bottom and backfill closely knit degree poor, the foundation ditch easily sinks and the yielding scheduling problem of pipeline, still can reduce ditching volume and backfill volume simultaneously, improve work efficiency.
Description
Technical Field
The utility model relates to a ditching machine, concretely relates to chain ditching machine.
Background
The chain type ditcher drives the traction chain to rotate through the driving chain wheel and the driven chain wheel, and ditches and digs the grooves by means of a chain cutter mechanism on the traction chain. Before the pipeline is laid, a foundation pit needs to be dug by a trencher, but the section of the foundation pit dug by the existing trencher is rectangular, the compactness of backfill soil at a wedge-shaped part between the pipeline and the pit bottom is difficult to meet the requirement, and even a cavity can appear, which is shown in figure 1. If the pipeline is a plastic pipe or a corrugated steel pipe which needs the surrounding soil to participate in stress, the pipeline is seriously deformed because the pipeline cannot be backfilled.
Disclosure of Invention
The purpose of the invention is as follows: the utility model aims at providing a make pipeline bury better chain ditching machine of effect underground.
The technical scheme is as follows: the chain type trencher of the utility model comprises at least three traction chains and a chain cutter mechanism, wherein the traction chains are arranged in parallel at intervals; each traction chain is matched with a pair of driving chain wheels and driven chain wheels, each driving chain wheel is arranged on the same driving shaft, and each driven chain wheel is arranged on the same driven shaft; the chain cutter mechanism comprises arc-shaped cutter plates which are transversely and symmetrically arranged on the plurality of traction chains, and digging cutters are arranged on the outer arc surfaces of the arc-shaped cutter plates.
Among this technical scheme, drive arc cutting board through the drag chain and dig out the pit bottom for curved foundation ditch for the pit bottom is laminated with the pipeline more, also backfills closely knit more easily, prevents that the foundation ditch from collapsing. In addition, compared with a rectangular foundation pit, the method can also reduce the trenching amount and the backfilling amount and improve the construction efficiency. Three drag chains are no less than arranged and the arc-shaped cutting boards are symmetrically fixed, so that the stability of the arc-shaped cutting boards can be ensured, the left and right swinging is prevented, and the foundation pit at the bottom of the arc is smoothly excavated.
Furthermore, in order to reduce the distance between the traction chain and the arc-shaped cutter blade, the structural strength is increased. For each chain wheel on the same shaft, the diameter from the middle chain wheel to the chain wheels at the two sides is decreased progressively.
Furthermore, the radian of the arc-shaped cutting board is matched with the diameter of the pipeline to be buried, so that the fit degree of the pipeline and the pit bottom is better.
Furthermore, a plurality of arc-shaped knife boards are arranged on the traction chain at even intervals.
Further, the arc-shaped cutting board is connected with the traction chain through a bolt.
Further, the digging cutter is welded and fixed on the arc-shaped cutter plate.
Further, the traction vehicle of the chain trencher adopts a wheel tractor, so that the trencher is more suitable for the environment of a pipeline construction site.
Has the advantages that: compared with the prior art, the utility model, have following advantage: the utility model discloses can dig out the arc end foundation ditch high with the pipeline laminating degree, solve the pipe bottom and backfill closely knit degree poor, the foundation ditch easily sinks and the yielding scheduling problem of pipeline, still can reduce ditching volume and backfill volume simultaneously, improve work efficiency.
Drawings
FIG. 1 is a schematic structural diagram of a pipeline arranged in a rectangular foundation pit;
FIG. 2 is a schematic view of the construction of the furrowing device;
FIG. 3 is a side view of FIG. 2 (with the chain cutter mechanism removed);
fig. 4 is a schematic structural diagram of the pipeline arranged in the arc-shaped foundation pit.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and embodiments.
As shown in fig. 2 and 3, a chain trencher comprises a traction locomotive and a trenching device, wherein the trenching device comprises a driving shaft 1, a driven shaft 2, a driving chain wheel 3, a driven chain wheel 4, a traction chain 5 and a chain cutter mechanism, the chain cutter mechanism comprises an arc-shaped cutter plate 6 fixed on the traction chain 5 through bolts, the radian of the arc-shaped cutter plate 6 is matched with the diameter of a pipeline to be buried, and a trenching knife 7 is uniformly welded and fixed on the outer arc surface of the arc-shaped cutter plate 6. In this embodiment, the number of the traction chains 5 is three, the traction chains are arranged in parallel at intervals, each traction chain 5 is matched with a pair of driving chain wheels 3 and driven chain wheels 4, the three driving chain wheels 3 are arranged on the driving shaft 1, and the three driven chain wheels 4 are arranged on the driven shaft 2. The diameter of the middle driving chain wheel 3 is larger than that of the driving chain wheels 3 at two sides, and the diameters of the driving chain wheels 3 at two sides are equal. The diameter of the middle driven chain wheel 4 is larger than that of the driven chain wheels 4 at the two sides, and the diameters of the driven chain wheels 4 at the two sides are equal. The arc-shaped knife boards 6 are symmetrically fixed on the three traction chains 5, and the arc-shaped knife boards 6 are uniformly arranged on the traction chains 5 at intervals.
The power of the driving shaft 1 is provided by a traction locomotive, and is not described in detail for the prior art. In this embodiment, the traction vehicle is a wheel tractor. The foundation pit formed by applying the chain trencher of the embodiment is as shown in fig. 4, and the bottom of the pit is in an arc shape which is adapted to the pipeline to be buried and has high fitting degree with the pipeline.
Claims (7)
1. A chain trencher, comprising a drag chain (5) and a chain cutter mechanism, characterized in that: the number of the traction chains (5) is at least three, and the traction chains are arranged in parallel at intervals; each traction chain (5) is matched with a pair of driving chain wheels (3) and driven chain wheels (4), each driving chain wheel (3) is arranged on the same driving shaft (1), and each driven chain wheel (4) is arranged on the same driven shaft (2); the chain cutter mechanism comprises arc-shaped cutter plates (6) which are transversely and symmetrically arranged on the plurality of traction chains (5), and digging cutters (7) are arranged on the outer arc surfaces of the arc-shaped cutter plates (6).
2. The chain trencher of claim 1 wherein: for each chain wheel on the same shaft, the diameter decreases from the middle chain wheel to the chain wheels on the two sides.
3. The chain trencher of claim 1 wherein: the radian of the arc-shaped cutting board (6) is matched with the diameter of the pipeline to be buried.
4. The chain trencher of claim 1 wherein: the arc-shaped knife boards (6) are arranged on the traction chain (5) at even intervals.
5. The chain trencher of claim 1 wherein: the arc-shaped cutting board (6) is connected with the traction chain (5) through a bolt.
6. The chain trencher of claim 1 wherein: the digging cutter (7) is welded and fixed on the arc-shaped cutter plate (6).
7. The chain trencher of claim 1 wherein: the traction locomotive of the chain type trencher adopts a wheel type tractor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122473887.4U CN217174986U (en) | 2021-10-14 | 2021-10-14 | Chain-type trencher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122473887.4U CN217174986U (en) | 2021-10-14 | 2021-10-14 | Chain-type trencher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217174986U true CN217174986U (en) | 2022-08-12 |
Family
ID=82707167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122473887.4U Active CN217174986U (en) | 2021-10-14 | 2021-10-14 | Chain-type trencher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217174986U (en) |
-
2021
- 2021-10-14 CN CN202122473887.4U patent/CN217174986U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231102 Address after: No. 331 Zhening East Road, Lishui Economic Development Zone, Nanjing, Jiangsu Province, 211215 Patentee after: Nanjing Dade Steel Pipe Co.,Ltd. Address before: 210000 No. 331 Zhening East Road, Zhetang Industrial Concentration Zone, Lishui Economic Development Zone, Nanjing City, Jiangsu Province Patentee before: NANJING LIANZHONG ENGINEERING TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |